<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style>
		div{
			width: 100px;
			height: 100px;
			background-color: red;
			/*margin:10px;*/
		}
		div:first-child{
			margin-bottom: 10px;
		}

		div:last-child{
			margin-top: -20px;	
		}
	</style>
</head>
<body>
	<div>div1</div>
	<div>div2</div>
</body>
</html>




